Research Article
Effects of -Cystine and -Theanine Supplementation on the Common Cold: A Randomized, Double-Blind, and Placebo-Controlled Trial
Table 3
Characteristics of the volunteers.
| | Characteristic | Cystine/Theanine group | Placebo group | -value |
| | Age (years; mean SE) | | | | | Number of the volunteers | | | – Allergic predisposition (%) | 32 (36.4) | 36 (42.4) | | | – Smokers (%) | 22 (25.0) | 24 (28.2) | | | – Colds more than twice per year (%) | 57 (64.8) | 56 (65.9) | | | – Living with school-age children (%) | 30 (34.1) | 24 (28.2) | |
|
|
The -test was used for comparisons between groups.
Fisher’s exact test was used for comparisons between groups.
|
